V2 = 0.65 mol + 0.35 mol = 1.00 mol
A syringe contains 0.65 moles of He gas that occupy 750.0 mL. What volume (in ml) of gas will the syringe hold if 0.35 moles of Ne is added?
A. 0.87 L
B. 4.9 L
C. 1.2 L
D. 2.1 L
E. 1.9 L
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